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(n + 2) ^nC0 2^n+1 – (n + 1) ^nC1 2^n + n. ^nC2 2^n–1......is equal to

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in Binomial Theorem by (53.7k points)

(n + 2) nC0 2n+1 – (n + 1) nC1 2n + n. nC2 2n–1......is equal to

a. 4

b. 4n

c. 4(n + 1)

d. 2(n + 2)

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1 Answer

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by (53.5k points)

Correct option is c. 4(n+1)

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